Appliance for operating upon sheets



Dec. 23, I930. J. E. DOYLE 1,736,153

APPLIANCE FOR OPERATING UPON SHEETS Filed Aug. 25. 1927 3 Sheets-Sheet 1""W W WI Dec. 23, 1930. J. E. DOYLE APPLIANCE FOR OPERATING UPON SHEETSFiled Aug. 25. 1927 a snets-sneet 2 Hau Dec- 1930. J. E. DOYLE'APPLIANCE FOR OPERATING UPON SHEETS Filed Aug. 25. 1927 3 Sheets-Sheet3 Q! l n.

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Patented Dec. 23, 1930 PATENT OFFICE JAMES EQDOYLE, OF CLEVELAND, OHIOAPPLIANCE FOR OPERATING UPON SHEETs Application filed August 25, 1927.Serial No. 215,362.

My invention pertains to an appliance adapted to cooperate withconveying mechanism for sheets from which certain portions have beensevered, and more particularly, consists of a contrivance whereby thesevered portions are positively and automatically removed while thesheet is appropriately guided and itsftravel mechanically pre scribed.

The drawings exemplify theapplication of the principles of my inventionto what is known as a Miehle press, the platen of which is supplied inaddition to type, with dies for severing certain portions of the'sheetsto be of the die-cuttings which were completely severed became scatteredabout the press and many lodged upon the freshly printed sheets to causeoff-set or smear, whereas those which retained their original locations,owing to the influence'of static electricity or, defective cutting,eventually had to be dislodged by tedious and time consumingmanipulation. The object of my invention is to'avoid the disadvantages,heretofore prevalent, by means of cooperating agencies which have beenpractically demonstrated by successful performance in contractjobs.,Specifically, my conception involves the application of a suctioneffect crosswise of or in opposition to the prescribed path of travel ofone or more die-cuttings so that they are withdrawn into a suctionnozzle, together with mechanismfor positively advancing a sheet I acrossthe zone of suction effect and at timed intervals automaticallyreleasing it. Another intermittently operating auxiliary agency'isprovided and automatically operates to remove from a sheet, after it hasreached the deposit table, any separated dis-v placed cuttings whichbecame and remained on top of the sheet and could not be sucked throughthe holes in the sheet.

' It is to be realized that the scope of my invention comprehends manymethods and constructions. The showing of the drawings and theparticular description 'arelnerely specific exemplifications of aplurality of mechanical embodiments and arrangements.

.. being omitted in order to reveal the location printed; but, asheretofore performed, those equivalent cylinder printing press showingmy appliance associated therewith, the paper sheet of a suction manifoldand other parts.

Figure 2 is a longitudinal vertical section on line 2-2 of Figure 1.

Figure 3 is another view of portions of Figure 2 showing certain movableparts in different positions.

Figure 4 is an enlarged fragmentary view of a lesser portion of Figure 2showing certain parts in the position which they occupy in Figure 2.

Figure 5 is a view correspondingto Figure 4 showing certain parts intheposition in which they appear in Figure 3.

Figure 6 is a vertical section viewe'd on line 66 of Figure 4.

Figure 7 is a fragmentary plan sectional view showing both suctionmanifold and blower nozzle, as they would appear on line 77 of Figure 2,excepting that the manifold appears in plan.

Figure 8 is a vertical cross-section on line v88 of Figure 2 to disclosethe relation of certain supporting elements.

Y Figure 9 is an enlarged vertical cross-section through the suctionmanifold on line 30 99 of Figure 7. V

Figure 10 is an enlarged vertical cross section of a die for punchingholes in the sheet. V Y Figure 11 is a plan view, on the same scale, 55of one of the twenty dies.

Figure 12 is a plan view, incompletely deholes. p

Figure 13 is an enlarged fragmentary view of acompleted detail of Figure12.

Standard press construction Theprinting press being of standardcommercial design, will have only such parts thereof described as isnecessary to a comprehension of the correlation andcooperation of myinvention. Adapted for contact with a cylinder .1 is a reciprocatingcarriage 2,

which comprises an inking surface 3 and a platen 4. A fountain roller 5is periodically in rolling contact with a transfer roller 6 and twogroups of inking rolls 7 and another group 8 are purposed uniformly todistribute the ink in a. manner well known to the art. Spaced somedistance above the carriage 2, is a composite frame 9 to be suppose asappropriately supported on standards, not shown. Mounted to turn on eachof two shafts on the composite frame 9 is a crosswise extending row ofseven rollers 10 and another correspondingly arranged row of sevenrollers 11 respectively, around each longitudinally alined pair of whichseven tapes 12 will travel. Four guide fingers 13 are adj ustablypositioned over the upper run of the tapes 12. A paper sheet, afterbeing printed, travels around the cylinder 1 and is projected onto thetapes 12, which carry it along underneath the fingers 13. The frame 9 isalso provided, on each side, with a track l-l along which a rollercarrier 15 will reciprocate in response to the actuation by a pair oflinks 16 articulating with two levers 17, which are connected with arock shaft 18. Extending across the frame 9, a short distance below thetracks 1 1, is a rod 19, (see Figures 2, 6 and 8), the purpose of whichis to support surfaces 20, six as shown in Figure 3, against which thepaper sheet will be pressed and held during a portion of its forwardtravel in unison with the carrier 15, after the manner of my invention,as will be hereinafter explained. The usual sheet deposit table 21 issupplied with. the customary pile adjusting guides 22 which effectivelydefine a receptacle in which the printed sheets are to be stacked.

Sheet drawing and releasing mechanism ltlounted across the reciprocatingcarrier 15 is a rod 23 having flat ends which are automatically causedto be raised and lowered in appropriate slots in the carrier when thelatter approaches the two limits of its reciprocal movement,respectively. This connection prevents rotation of the rod 23 which willeither occupy recesses 24, (see Figure 5), which are formed in twoelements 25, which are slidably mounted at opposite lateral sides of thecarrier, or will be raised against plungers 26, (see Figure 6) againstthe action of encircling springs 27. The raising action of the rod 23 isover cams 28. Carried in suitable spaced relationship on the compositeframe 9, as appears in Figure 2, are a pair of stops 29 and 30, againstwhich opposite ends of the reciprocably mounted elements 25 willalternately impinge when the carrier 15 nears either limit of itsmovement. Figures 2 and 4 reveal the rod 23 in its lowered position and,as indicated by the direction arrows in those figures, the carrier 15 ismoving toward the left. Presently, the left ends of the elements 25 willengage the stops 29,

just prior to the completion of the carriers movement to the left,thereby sliding the elements 25 and hence the cam surfaces 28 towardsthe right with relation to the rod 23, which acts to raise the rod 23 tothe position in which it is shown in Figures 3 and 5 where it remainsduring the return travel of the carrier. Just before the carrier 15reaches the end of its movement toward the right, the opposite ends ofthe elements 25 will impinge against the stops 30 and in consequence beslid to the left to cause the rod 23 to slide down the cam surfaces 28as urged by the compression springs 27. Adjustably clamped along the rod23 and depending therefrom are a series of arms 31 and adj ustablyattached to the lower end of each arm 31 is an extension 32 terminatingas a sheet-gripping shoe 33. As may be observed in Figure 8, six of thearms 31 are employed to correspond in numher with the surfaces 20against which the forward end of a paper sheet S is periodically to bepressed by the shoes 33. Attention is directed to Figures 2, 10 and 11,where it will be seen that the platen 4 also carries a series of twentydies 34 regularly interspersed with the type. The dies are depressiblein the usual manner against the action of springs 35 and at the sametime that a sheet is printed. While the platen moves underneath thecylinder 1, the relative compressive action of the latter, as it alsorolls in contact with the dies 34, will cause the latter to punchsevertwenty circular lines from the sheet. It is to be understood, that thedelivery, from the cylinder 1, of each punched and printed sheet will beso timed, with reference to the reciprocal action of the carrier 15,that the forward edge of the sheet will reach the left ends of thesurfaces 20 just when the impingement of the elements 25 with the stops30 occurs, whereupon the rod 23 is depressed to cause the six shoes 33to press the sheet S against the surfaces 20, preparatory positivelyfurther to advance it by a drawing operation and as it is seen to bedoing in Figure 2. When the elements 25 impinge against the stops 29,the sheet S will be substantially over the deposit table receptacle 22and the sheet is then released because the shoes 33 are raised, so thatduring the return movement of the carrier 15, as illustrated in Figure3, the sheet S is permitted gravitationally to slip free and becomedeposited.

Directing attention to Figures 12 and 13 where the printed and punchedsheet S is illustrated to have had round holes 36 cut therefrom, each ofwhich is centrally located with respect to an annular printed pattern 37to adapt the performance to use in conjunction with recordinginstruments. The holes 36 occasioned by the removal of round punchings38, which may be supposed to be still adhering in Figure 12 and to havebeen removed in Figure 13. The punchings Suction appliance Some of thepunchings 38 are initially entirely separated whereas many, even thosecompletely severed, retain the positions which they occupied asintegralparts of the sheet'owing to the influence of static electricity.Accordingly, it is desirable to effect their removal by other than amanual operation, which is slow and therefore expensive and further topreclude any punchings remaining unseparated when the sheets reach thedeposit table 21, where their displaced presence would probably causeasmear of the freshly printed patterns. herefore, I have provided asuction appliance for automatically detaching and removing the punchings38 before the sheets become deposited as a laminated pile. Asillustrated in Figure 1, a motor 39 drives a suction fan rotatable in anappropriate casing 40, with the discharge outlet of which a receptacle41 is connected.

Leading from the inlet of the suction fan casing is a conduit 42 whichcontinues to a point underneath the delivery end of the lower run of thetapes 12 where, as disclosed in Figure 7, it connects with a manifold43,

the branches of which communicate with a series of mouths 44 which arepresented upwardly substantially on a level with the sheet supportingsurfaces 20 and are spaced as a crosswise extending row according to thespacings of each crosswise extending row of dies 34 and hence of sheetpunchings. The

mouths 44, as most clearly revealed in Figure Auxiliary blower As anadditional safeguard against the presence of any punchings on adeposited sheet, I have provided an auxiliary blower for directing anair blast, fora short time, over each sheet after it is deposited on thetable 21, together with automatically operating mechanism forintermittently causing a cessation of the air blast during the period oftime while the succeeding sheet is settling upon the table. In Figure 1will be seen another motor 46, for operating a blower 47, discharginginto a duct 48 leading to the middle line of the pres-s and attached atits other end by means of a clamp 49 with a flared nozzle 50, the mouthof whichis disposed to direct an air blast obliquely downward across thepile of sheets in the manner shown in Figure 2. A valve casing 51.isinterposed in the duct48 at one side of the press and is provided with avalve 52 adaptedto be turned by a rod 53, shown in Figure 8. The upperend of the rod 53 carries an arm 54 which is pivotally connected to abar 57. This bar 57 is provided with two projections and 56, upstandingin spaced relation thereon,

whereas, the ends of the bar are movably' supported by means of links 58and 59, .(see

Figure 1), with the composite frame 9. It

willbe noted that the links 58 and 59 are of the same length and in linewith the arm 54, so that the linksand arm will move simultaneously.

- A bracket 60 is mounted on the carrier 15 and therefore reciprocatesin unison with this carrier and the parts mounted thereon. This bracket60 is provided with a depending portion 61 at the lower extremity ofwhich a finger 62 is provided. This finger 62 moves in unison with thecarrier 15 and in line with the projections 55 and. 56 and is thereforeadapted to move the link 57 to the left or right as it strikes the stops55 or 56, respectively. It will be understood, that the stops 55 and 56are so located and the distance therebetween so selected that the finger62 will give sufficient movement to the stopr55 or 56t0 move the arm 54and hence to move the valve 52 from the completely open to thecompletely closed position or vice versa. The valve 52 isshown to beopen in Figures 2 and 8, it having been opened by the impingement of thefinger 62 with the projection 56. In the position of the parts shown inFigure 1, the finger 62 willnext impinge against the projection 55 tomove it and therefore to turn the valve 52 to its closed position so asto H cause a cessation of the blast from the nozzle 50 before the shoes33 release the sheet S preparatory to its deposition during the returnmovement of the carrier 15. Before the carthe projection 56 to open thevalve 52 the blast from the nozzle 50 will blow away any punchings38which may still chance" to be at the top'of the pile of sheets.

My invention is especially applicable when using sensitized paper,because the offset of printed impressions thereon is more likely tooccur if any-cuttings remain loose upon the top of a sheet after it isdeposited in the jogger box.

I claim: 1

1. In a printing press, the combination of a movable sheet carrier, asuction appliance for applying a suction to said moving sheet, mechanismmounted on-said carrier and including a movable fingeradaptedperiodically to press a paper sheetagainst said carrier Whileapproaching said suction appliance,

and automatically operating means for actuating said finger away fromsaid carrier after the sheet has passed said suction appliance.

2. In a printing press, the combintion of a suction appliance, a movablesheet carrier adapted to convey a sheet past said appliance, mechanismmounted on said carrier and including a movable finger adaptedalternately to move toward and away from said carrier, and automaticallyoperating means for actuating said finger toward said carrier to press apaper sheet thereagainst while approaching and to release the sheetafter it has passed said suction appliance.

S. In combination, means for successively severing a series of portionsfrom a blank and distinct successively functionating suction means fordetaching and removing the severed portions.

at. In combination, means for conveying a sheet, means for severing aseries of portions from said sheet at one stage of its conveyance andsuction means for removing the severed portions at a later stage of itsconveyance.

5. The combination of a series of cutting dies, mechanism including acylinder for pressing a sheet of paper against said dies to severportions of said sheet, means for'conveying said incisioned sheet fromsaid cylinder and a suction appliance provided with an inlet opposed inproximity to the path of travel of said severed portions on said 0011-veying means.

6. The combination of a series of cutting dies, mechanism including acylinder for rolling a sheet of paper against said dies to sever spacedportions of said sheet, means for conveying said incisioned sheet fromsaid cylinder and a suction appliance provided with a plurality ofcorrespondingly spaced inlets opposed in proximity to the paths oftravel of said severed portions on said conveying means.

7. The hereindescribed method consisting in conveying a sheet whichincludes a severed portion held against gravitational deposition, andcausing a suction effect to be exerted against the lower side of saidportion.

8. In an appliance of the character described, the combination of asheet conveyor, mechanism for severing a divisional area from saidsheet, and a duct located apart from said mechanism and having opposedto the path of conveyed travel of the severed divisional area of saidsheet a relatively larger inlet mouth.

9. In an appliance of the character de scribed, the combination of asheet conveyor, mechanism for severing a divisional area from saidsheet, and a duct located apart from said mechanism and having an inletmouth opposed to the path of conveyed travel of the severed divisionalarea of said sheet, the advanced side of said mouth with refer- ,ence tothe direction from which'said. sheet approaches being flanged as adownwardly curved lip whereby to insure uninterrupted travel of thesheet.

10. In an appliance of the character described, the combination of asheet conveyor, mechanism for simultaneously severing crossed rows ofportions from said sheet, a manifold having inlet openings opposed tothe path of conveyed travel of said sheet, said openings beingcorrespondingly spaced as are the severed portions composing one of saidcrossed rows and a suction agency connected with said manifold andadapted simultaneously to exert its influence upon to dislodge andremove the severed portions through months which are momentarilyjuxtaposed respectively and also adapted successively to exercise itsfunction in respect to the severed portions composing a crosswiseextending row.

11. In combination, a cylinder, a platen, mechanism for causing arolling contact therebetween, dies carried by the platen for severing aportion from a sheet, mechanism for conveying the sheet from saidcylinder and suction means for removing the severed portion during itsconveyance by said mechamsm.

12. In combination, a reciprocating carrier for conveying and releasinga sheet, punching mechanism adapted to operate upon the sheet intransit, a nozzle located at the point of release of said sheet andbeyond the point of operation of said mechanism, said nozzle beingdirected counter to the direction of movement of said carrier after itsrelease of said sheet, a source of compressed air connected with saidnozzle, a valve for controlling ejection of air from said nozzle andautomatically operating means comprising elements carried by saidcarrier and spaced along the line of its travel and adapted alternatelyto open and close said valve.

Signed by me, this 1st day of Aug, 1927.

JAMES E. DOYLE.

